Mosquitoes are the "deadliest animal on the planet," and even when the bites aren't fatal, they're certainly not pleasant.

Dr Philippa Kaye explains what norovirus is and how best to treat it. ©News Group Newspapers Limited in England No. 679215 Registered office: 1 London Bridge Street, London, SE1 9GF. "The Sun", "Sun", ...

After surviving asthma as a child, the author explores whether parasitic worms—once a natural part of our gut biome—might ...

Toxoplasma gondii, a parasite spread by cats, can shred human sperm and may be an overlooked factor in declining male ...

But perhaps the Asian Longhorned tick will one day eclipse that tick in fame. Native to China and other countries in East ...

Toxoplasma: Some sperm cells had holes in their head, suggesting the parasites were trying to invade them as it would any ...

Infectious diseases such as gonorrhea or chlamydia are often overlooked factors that affect fertility in men. Accumulating ...

Parasitic worms that infect humans are not interbreeding with those that infect cattle as previously thought. This is good ...

If you’ve handled cat litter or eaten raw meat or unwashed produce, there’s a chance you might have a permanent toxoplasmosis ...